Asteraceae — Daisy Family
Cirsium heterophyllum (L.) Hill
Cirsium heterophyllum (L.) Hill
Cirsium heterophyllum is a spineless thistle native to northern Europe and Central Asia with historical use against sadness.
Cirsium hookerianum Nutt.
Cirsium hookerianum Nutt.
Cirsium hookerianum (Hooker's/white thistle) is a North American thistle native to mountain regions of western Canada and the northwestern U.S.
Cirsium horridulum Michx.
Cirsium horridulum Michx.
Cirsium horridulum Michx. is a spiny biennial herb with colorful flower heads that hosts butterfly larvae and feeds pollinators.
Cirsium japonicum Fisch. ex DC.
Cirsium japonicum Fisch. ex DC.
Cirsium japonicum is a perennial thistle in the sunflower family native to eastern Asia.
Cirsium kamtschaticum Ledeb. ex DC.
Cirsium kamtschaticum Ledeb. ex DC.
Cirsium kamtschaticum (Kamchatka thistle) is a spiny thistle species native to Alaska, East Asia, and North Pacific islands.
Cirsium mohavense (Greene) Petr.
Cirsium mohavense (Greene) Petr.
Cirsium mohavense, virgin or Mojave thistle, is a native thistle of the southwestern US that grows in moist desert spots.
Cirsium muticum Michx.
Cirsium muticum Michx.
Cirsium muticum Michx., or swamp thistle, is a biennial thistle native to North American wetlands that hosts several butterfly and moth species.
Cirsium neomexicanum A.Gray
Cirsium neomexicanum A.Gray
Cirsium neomexicanum is a tall spiny thistle with colored disc florets that is usually not a troublesome noxious weed.
Cirsium occidentale (Nutt.) Jeps.
Cirsium occidentale (Nutt.) Jeps.
Cirsium occidentale is a native thistle native to western US that hosts butterfly larvae and is not a troublesome weed.
Cirsium ochrocentrum A.Gray
Cirsium ochrocentrum A.Gray
Cirsium ochrocentrum is a spiny perennial thistle, used medicinally by the Zuni people, that grows as a weed in disturbed areas.
Cirsium oleraceum (L.) Scop.
Cirsium oleraceum (L.) Scop.
Cirsium oleraceum is a herbaceous perennial thistle native to most of Europe and parts of Asia, growing in wet lowland soils.
Cirsium palustre (L.) Scop.
Cirsium palustre (L.) Scop.
Cirsium palustre is a tall Eurasian thistle, invasive in North America, that ranks highly for pollinator nectar production.
Cirsium pitcheri (Torr. ex Eaton) Torr. & A.Gray
Cirsium pitcheri (Torr. ex Eaton) Torr. & A.Gray
Cirsium pitcheri, or Pitcher's thistle, is a monocarpic sand dune thistle native to the Great Lakes shores of North America.
Cirsium pumilum (Nutt.) Spreng.
Cirsium pumilum (Nutt.) Spreng.
Cirsium pumilum (pasture thistle) is a North American thistle native to central/northeastern US and Ontario, with spiny leaves and sweet-scented flower heads.
Cirsium quercetorum (A.Gray) Jeps.
Cirsium quercetorum (A.Gray) Jeps.
Cirsium quercetorum is a perennial thistle endemic to California’s Outer Coast Ranges, growing in coastal grasslands and open woodlands.
Cirsium rhothophilum S.F.Blake
Cirsium rhothophilum S.F.Blake
Surf thistle (Cirsium rhothophilum) is a rare endemic California thistle that grows on central coast sand dunes.
Cirsium rivulare (Jacq.) All.
Cirsium rivulare (Jacq.) All.
Cirsium rivulare is a European perennial thistle, and its popular deep crimson cultivar has earned the RHS Award of Garden Merit.
Cirsium scariosum Nutt.
Cirsium scariosum Nutt.
Cirsium scariosum Nutt. is a highly variable biennial or perennial thistle with three main growth forms.
Cirsium spinosissimum (L.) Scop.
Cirsium spinosissimum (L.) Scop.
Cirsium spinosissimum (spiniest thistle) is a spiny European thistle that grows in dry rocky areas across parts of continental Europe.
Cirsium texanum Buckley
Cirsium texanum Buckley
Cirsium texanum (Texas thistle) is a North American thistle that provides food for butterflies and goldfinches.
Cirsium undulatum (Nutt.) Spreng.
Cirsium undulatum (Nutt.) Spreng.
Cirsium undulatum, the wavyleaf or gray thistle, is a perennial North American thistle species.
Cirsium vulgare (Savi) Ten.
Cirsium vulgare (Savi) Ten.
Cirsium vulgare, or spear thistle, is a spiny flowering thistle with documented edible and traditional uses.
Cladanthus mixtus (L.) Chevall.
Cladanthus mixtus (L.) Chevall.
Cladanthus mixtus, or Moroccan chamomile, is an annual Mediterranean plant harvested for oil used in perfumes and soothing skin products.
Coleostephus myconis (L.) Rchb.fil.
Coleostephus myconis (L.) Rchb.fil.
Coleostephus myconis is an annual daisy-like plant native to Mediterranean southern Europe, invasive in parts of South America.
Related Families
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